Finding the Fourth Proportional to 1,163,278.62, 1,605,301.46 and 647,021.40
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Solution
The fourth proportional to 1,163,278.62, 1,605,301.46 and 647,021.40 is: 892,876.72
Step by Step Solution
- Step 1: Write the proportion equation
1,163,278.62 : 1,605,301.46 = 647,021.40 : x - Step 2: Convert to fraction form
1,163,278.62/1,605,301.46 = 647,021.40/x - Step 3: Cross multiply
1,163,278.62x = 1,605,301.46 × 647,021.40 - Step 4: Simplify right side
1,163,278.62x = 1,038,664,398,071.24 - Step 5: Solve for x
x = 1,038,664,398,071.24/1,163,278.62 - Step 6: Final answer
x = 892,876.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.